Pupil expander



FIG. 1 is a perspective view of a pupil expander showing my new design;

FIG. 2 is a left side elevation view and is a mirror image of a right side elevation view thereof;

FIG. 3 is a front side elevation view and is a mirror image of a rear side elevation view thereof;

FIG. 4 is a bottom plan view thereof; and,

FIG. 5 is a top plan view thereof. 

CLAIM The ornamental design for a pupil expander, as shown and described. 